Turbine locomotive



March 11, 1941. E. BAUMANN TURBINE LOCOMOTIVE Filed Sept. 1, less INVENTOR ERusT Bnunmm.

l (P? I M ATTORNEY .N QE

WITNESSES:

Patented Mar. 11, 1941 UNITED STATES TURBINE LO GOMOTIVE Ernst Baumann, Berlin-Spandau, Germany, assignor to Westinghouse Electric & Manufacturing Company, a corporation of Pennsylvania Application September 1, 1938, Serial No. 228,056 In Germany November .26, 1937 3 Claims.

The present invention relates to turbinedriven locomotives and it has for an object to provide apparatus of this character wherein the means for transmitting power from the turbine to the traction Wheels is so arranged as to accommodate a turbine of suitable length to obtain high efiiciency.

In accordance with the present invention, the turbine is disposed transversely of locomotive side frame members with terminal portions of the turbine cylinder carried by the side frame members and with terminal portions of the spindle extending beyond the latter, the spindle terminal portions being connected to terminal portions of a parallel countershaft by means of gear trains of the double reduction type, and the countershaft being connected to a traction wheel drive shaft by transmission mechanism, for example, by cranks and connecting links, which will permit of relative displacement of the drive shaft. A more particular object of the invention is to provide apparatus of this character wherein the gear trains are so arranged that the planes of the gear members of the second reduction are arranged outwardly of the side frame members and between the latter and the planes of the gear membersof the first reduction, with the result that greater turbine spindle length and ,0. consequently a larger number of turbine stages may be provided.

These and other objects are effected by my invention as will be apparent from the following description and claims taken in accordance with the accompanying drawing, forming a part of this application, in which:

Fig. 1 is a somewhat diagrammatic longitudinal sectional view illustrating the application of the invention to a turbine driven locomotive; and,

Fig. 2 is a diagrammatic side elevational view of the structure shown in Fig. 1.

In the drawing, there is shown, at H], a turbine-driven locomotive including spaced parallel frame side members ll, supported by the wheels 12 of the conventional truck, and by a pluralit of driving wheels l3.

A turbine, at l 5, is disposed transversely of the frame side members II, and it includes a spindle l6 mounted in a casing H, the latter having terminal portions Ila projecting through and being supported by the frame side members.

The turbine spindle has terminal portions l8 projecting beyond the terminal portions of the cylinder and the frame members and carrying pinions l9 meshing with the gears 2| connected to stub shafts 22. The stub shafts 22 also carry pinions 23 meshing with the gears 24 keyed to terminal portions of the lay or countershaft 26 arranged outwardly of the side frame members. Thus, it will be seen that the terminal portions of the spindle and of the lay shaft arranged beyond the side frame members are connected by gear trains of the double reduction type wherein the gear members of the second reduction and comprising the meshing pinions 23 and 24 are arranged in planes disposed outwardly of the side frames I l and between the latter and planes of the gear members of the first reduction and comprised by the meshing pinions I9 and gears 2|.

The counter or lay shaft 26 is connected to a drive shaft or axle 30 for the driving wheels l3 by transmission mechanism which will permit of displacement of the drive shaft angularly and translatorially in a plane which is vertical and transverse with respect to the side frame members. Preferably, the transmission mechanism for this purpose comprises a plurality of cranks 21 on the lay shaft 26 connected by links or rods 28 to cranks 29 of the drive shaft or axle 30.

The gear trains are preferably enclosed by casings 34 cooperating with the terminal portions Ila of the turbine cylinder and with the side frame members II. The turbine spindle I5, the stub shafts 22, and the counter or lay shaft are all carried by the side frame members whereas, as already described, the drive shaft is capable of vertical displacement relative to the side frame members. Referring to the mounting of parts on the frame members, the cylinder terminal portions Ha, as already described, extend through suitable openings provided in the side frames ll so that the turbine may thereby be carried by the side frames. The cylinder terminal portions Ila are provided with bearings 35 cooperating with portions of the turbine spindle arranged inwardly of the pinions l9, whereby the turbine spindle is supported by the cylinder terminal portions from the side frames. The casing 34 is preferably provided with steady bearings 36 for the outer ends of the spindle terminal portions arranged beyond the pinions l9. Each of the stub shafts 22 has terminal journal portions fitting bearings 31 and and 38 carried by the side frames and by the casing, respectively. The counter or lay shaft 26 has journal portions disposed inwardly of the gears 24 and fitting bearings 39 carried by the side frames and it is preferably provided with journal portions arranged outwardly of the gears 24 and fitting bearings 40 carried by the casing 34. Thus, it will be seen that theiturbine spindle, the stub shafts, and the lay shaft are maintainedin predetermined spaced relation and carried by the side frames. Spaces 42 are shown between the side frames and the drive shaft or axle 30, these spaces indicating, diagrammatically, capacity for displacement of the drive shaft or axle with respect to the side frames.

Preferably, the driving wheels l3 are provided with conventional cranks 3| for the transmission of power through side rods or links 32 to additional driving wheels (not shown) While I have shown my invention in but. one.

form, it will be obvious to those skilled in the art that it is not so limited but is susceptible of various changes and modifications without departing from the spirit thereof, and I desire,

therefore, that only such limitations shall be tending through openings provided 'in the ,side

frame members and encompassing a portion of the blading, and spindlebearings disposed outwardly of the side frame members and carried by said terminal portions; a lay shaft disposed transversely of the side frame members and having end portions. extending through and beyond the latter; gear trains disposed outwardly of the side frame members and connecting the outer ends of the spindle to the outer ends of the lay shaft; said gear trains each including intermediate gears mounted on stub shafts whose inner ends are carried by the side frame membersjand do not protrude inwardly of the latter, whereby the turbine casing may extend radially toward the lay shaft so as to be in overlapping relation with respect to the intermediate gears and the stub shafts; a drive shaft arranged parallel to the lay shaft; and means arranged between the side frame members for transmittingpower from the lay shaft to the drive shaft, and providing for relative displacement thereof.

2. In a turbine clriven locomotive, driving wheels, a frame comprising a pair of side frame aggregates, each" aggregate including a side frame element and a casing element attached thereto. and providing therewith a "gear housing, said gear housings. being, disposed outwardly of the side frame elements, a turbine extending transversely of the frame and including a spindle and a casme, said casing extending through the side frame elements so as to be supported by the latter and having end portions disposed outwardly thereof and attached to the casing elements of said ag-.

gregates, spindle bearings carried by said end portions, a lay shaft connected tosaid driving wheels and arranged parallel to the turbine spindle; said spindle and lay shaft haying.,.terminal portions extending beyondthe side frame elements and transversely of the housings, bearings for the lay shaft carried by said side frame elements, gear trains in said housings and connecting the turbine spindle to the lay shaft, each gear train including a pinion on. the spindle, and a driven gear on the lay shaft, and bearings for the gears of each gear train including said bearings forthe spindle and layshaft and bearings carried by the casing elements for the portions of the spindle and lay shaft extending outwardly of theside frame elements.

3. In a turbine-driven loco-motive; driving wheels; a frame comprising a pair of side frame aggregates; each aggregate including a side frame element and a casing element attached thereto and providing. therewith a gear housing, said gear housings being disposed outwardly of the side frame elements; a turbine extending transversely of the frame andincluding a spine die and a'casing, said casing extending through the side frame elements so as to be supported by the latter and having end portions disposed outwardly thereof and attached to the casing elements of said aggregates; spindle bearings carried by said end portions; a lay shaft connected to said driving wheels and arranged parallel to the turbine spindle; said spindle and lay shaft having terminal portions extending beyond the side frame elements and. transversely of the housingsfbearin'gs for the lay shaft carried by said side frameelements; gear trains in said housings and connecting the turbine spindle to the lay shaft, each gear train 'including a pinion carried by a spindle terminal portionjan intermediate gear meshing with the pinion, an intermediate .inion axially aligned with the intermediate gear, afdriven gear carried by a layshaft terminal portion, and a stub shaft extending transversely of the geartrain housing and carrying the intermediate gear and pinion; and bearings for the gears. of each gear train including said spindle and lay shaft bearings, bearings for the spindle and lay shaft carried. by thecasing element of the train and aligned, respectively, with said first bearings, and bearings for the stub shaft carried by its side frame and casing elements.

ERNST BAUMANN. 

